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Discussion of precise time and frequency measurement

TM7000 Manual?

Bruce Lane

Sun, Sep 11, 2016 5:24 PM

Fellow Clock-tickers,

Has anyone ever found a PDF of the manual for the Datum/Symmetricom

'TymMachine' TM7000? Googling has, so far, turned up nothing more than
the near-useless data sheet, and Microsemi's site doesn't seem to have
anything either (unless I missed it).

Thanks.

--

Bruce Lane, ARS KC7GR
http://www.bluefeathertech.com
kyrrin (at) bluefeathertech dot com
"Quando Omni Flunkus Moritati" (Red Green)

Fellow Clock-tickers, Has anyone ever found a PDF of the manual for the Datum/Symmetricom 'TymMachine' TM7000? Googling has, so far, turned up nothing more than the near-useless data sheet, and Microsemi's site doesn't seem to have anything either (unless I missed it). Thanks. -- --- Bruce Lane, ARS KC7GR http://www.bluefeathertech.com kyrrin (at) bluefeathertech dot com "Quando Omni Flunkus Moritati" (Red Green)

Bryan _

Mon, Sep 12, 2016 7:36 AM

Hello:
I have been following the Jim Miller simple GSDO build project at http://www.jrmiller.demon.co.uk/projects/ministd/frqstd0.htm I have a few OCXO's kicking around, but wondering what would the appropriate components be for for R1,R2, C1, C2 to provide the PLL filter. I assume the PLL filter needs to be designed to accommodate a specific oscillator specifications, or maybe it doesn't really matter and can use the default values in the schematic?.
Was also considering using a picdiv instead of the 2- 74HC390, not sure if that would be an advantage or disadvantage in terms of operating performance?
Cheers

Hello: I have been following the Jim Miller simple GSDO build project at http://www.jrmiller.demon.co.uk/projects/ministd/frqstd0.htm I have a few OCXO's kicking around, but wondering what would the appropriate components be for for R1,R2, C1, C2 to provide the PLL filter. I assume the PLL filter needs to be designed to accommodate a specific oscillator specifications, or maybe it doesn't really matter and can use the default values in the schematic?. Was also considering using a picdiv instead of the 2- 74HC390, not sure if that would be an advantage or disadvantage in terms of operating performance? Cheers